Figure 8From: Mucosal sensitization to German cockroach involves protease-activated receptor-2Histological assessment of mucin staining from mice exposed to GC frass or protease-depleted GC frass. Periodic Acid Schiff (PAS) staining of sectioned lungs from mice exposed to PBS (A), aprotinin-treated PBS (B), GC frass (C) or protease-depleted GC frass (D). Representative slides are shown of sections from 8 mice per group.Back to article page